Valium 10mg tablets contain 10 milligrams of diazepam, the active ingredient used to manage conditions like severe anxiety, muscle spasms, or certain seizures. This dosage is considered relatively high and is typically prescribed when a stronger therapeutic effect is needed. The specific dose and treatment plan should always be determined by a healthcare professional, taking into account the individual's medical history and condition. It’s essential to follow the prescribed dosage and usage instructions carefully to avoid potential side effects and complications, especially with higher doses like 10mg.